//*****************************************************************
//  pp23.java    Author:YanYuJun
//*****************************************************************
 public class pp23
 {
 public static void main(String[] args)
 { 
 
 double num1 = 6.1;
 double num2 = 6.2;
 double jiafa = num1 + num2;
 double chengfa = num1 * num2;
 double chufa = num1 / num2;

  System.out.println("num1 + num2 = " +  jiafa);

  System.out.println("num1 * num2 = " + chengfa);
  
  System.out.println("num1 / num2 = " + chufa);
 }
}  

